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An 800 V/m electric field is directed along the +x axis. If the electric potential at x=0m is 2000V, what is the electric potential at x = -2m?
A simple Atwoods machine uses two masses, m1 and m2. Starting from rest, the speed of the two masses is 2.0 m/s at the end of 5.0 s. Determine the values of m1 and m2
three charged particles are fixed to an x axis particle 1 of charge q1 2.1e-8 c is at position x20 cm and particle 2
A neutron star has a mass of 2.0 1030 kg (about the mass of oursun) and a radius of 4.8 103 m (about the heightof a good-sized mountain). Suppose an object falls from rest nearthe surface of such a star. How fast would it be moving after ithad fall..
Suppose that 250g of water at 85oC is mixed with 25g of ice at 0oC in an insulated container of negligible heat capacity. How much of the ice has melted
A nonconducting spherical shell, with an inner radius of 4 cm and an outer radius of 6 cm, has charge spread nonuniformly through its volume between its inner and outer surfaces. The volume charge density ? is the charge per unit volume, with the uni..
An electric dipole of dipole moment 4.5 x 10-9 C·m is in a 250 N/C electric field, what is the potential energy
a spinning disc rotating at 130 rev/min slows and stops 31 s later. how many revolutions did the disc make during this time
A boy of mass 58.1 kg is about to disembark from a canoe of mass 36.3 kg, How far is the boy from the dock when he reaches the bow
An electron going east with speed ve = 0.4c collides with a proton going north with speed vp = 0.3c. This collision will create a photon. Find the direction of the photon
A 3.0-cm-diameter parallel-plate capacitor with a 1.0 mm spacing is being charged at the rate of 0.75 C/s. What is the magnetic field strength inside the capacitor
A sample of gold of volume 2.00*10^-5 m^3 is available to make a wire. If the length of the wire is to be 50.0 cm and all the gold is used, what will be resistance of the wire? (Gold has a resistivity of 2.44*10^-8Ωm and a temperature coefficient of ..
A proton traveling to the right along the x-axis enters a region where there is a magnetic field of magnitude 3.7 T directed upward along the y-axis. The charge on a proton is 1.60×10?19. If the proton experiences a force of 3.6 × 10?12 N, find its s..
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